Ottawa Gold purchases all types of silver bullion. The prices that we pay for silver bullion depends largely on whether it is recognized or not. If bullion is produced from a recognized minting organization (ie known and trusted refineries and governments) it can be easily resold and we are able to offer a higher price for it.
Unrecognized bullion must be refined or sold off for a lower resale price, as a result, the payouts for these products are slightly lower.